Wilson and Cowan [1]} found interesting features as e.g. staircases of bistable regimes and limit cycles. A thorough analysis of the model's bifurcation structure has been undertaken in [2]}. The authors create a two-parameter structural portrait by fixing all the parameters but \(\mu _1\)  and \(j_{21}\)  and find that the \(\mu _1-j_{21}\)  plane turns out to be partitioned into several regions by:
